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| Berline, Léa; Doglioli, Andrea Michelangelo; Petrenko, Anne; Barrillon, Stéphanie; Espinasse, Boris; Le Moigne, Frederic A. C.; Simon-bot, François; Thyssen, Melilotus; Carlotti, François. |
| In the upper layers of the Ionian Sea, young Mediterranean Atlantic Waters (MAW) flowing eastward from the Sicily channel meet old MAW. In May 2017, during the PEACETIME cruise, fluorescence and particle content sampled at high resolution revealed unexpected heterogeneity in the central Ionian. Surface salinity measurements, together with altimetry-derived and hull-mounted ADCP currents, describe a zonal pathway of AW entering the Ionian Sea, consistent with the so-called cyclonic mode in the North Ionian Gyre. The ION-Tr transect, located ~19–20° E–~36° N turned out to be at the crossroad of three water masses, mostly coming from the west, north and from an isolated anticyclonic eddy northeast of ION-Tr. Using Lagrangian numerical simulations, we suggest... |
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| Ano: 2021 |
URL: https://archimer.ifremer.fr/doc/00677/78886/81182.pdf |
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| Tzortzis, Roxane; Doglioli, Andrea M; Barrillon, Stéphanie; Petrenko, Anne A; D'Ovidio, Francesco; Izard, Lloyd; Thyssen, Melilotus; Pascual, Ananda; Barcelo-llull, Barbara; Cyr, Frédéric; Tedetti, Marc; Bhairy, Nagib; Garreau, Pierre; Dumas, Franck; Gregori, Gérald. |
| Model simulations and remote sensing observations show that ocean dynamics at fine scales (1–100 km in space, day–weeks in time) strongly influence the distribution of phytoplankton. However, only few in situ samplings have been performed and most of them in boundary currents which may not be representative of less energetic regions. The PROTEVSMED-SWOT cruise took place in the moderately energetic waters of the western Mediterranean Sea, in the southern region of the Balearic Islands. Taking advantage of near-real time satellite information, a sampling strategy was defined in order to cross a frontal zone separating different water masses. Multi-parametric in situ sensors mounted on the vessel, on a towed fish and on an ocean glider were used to sample at... |
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| Ano: 2021 |
URL: https://archimer.ifremer.fr/doc/00683/79486/82078.pdf |
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| Guieu, Cécile; D'Ortenzio, Fabrizio; Dulac, François; Taillandier, Vincent; Doglioli, Andrea; Petrenko, Anne; Barrillon, Stéphanie; Mallet, Marc; Nabat, Pierre; Desboeufs, Karine. |
| In spring, the Mediterranean Sea, a well-stratified low nutrient low chlorophyll region, receives atmospheric deposition both desert dust from the Sahara and airborne particles from anthropogenic sources. Such deposition translates into a supply of new nutrients and trace metals for the surface waters that likely impact biogeochemical cycles. However, the quantification of the impacts and the processes involved are still far from being assessed in situ. In this paper, we provide a state of the art regarding dust deposition and its impact on the Mediterranean Sea biogeochemistry and we describe in this context the objectives and strategy of the PEACETIME project and cruise, entirely dedicated to filling this knowledge gap. Our strategy to go a step forward... |
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| Ano: 2020 |
URL: https://archimer.ifremer.fr/doc/00611/72340/71224.pdf |
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| Barrillon, Stéphanie; Bataille, Hubert; Bhairy, Nagib; Comby, Caroline; Coulon, Théo; Doglioli, Andrea; D'Ovidio, Francesco; Fuda, Jean-luc; Gregori, Gérald; Petrenko, Anne; Ricout, Anaïs; Rousselet, Louise; Thyssen, Melilotus; Tzortzis, Roxane. |
| The FUMSECK cruise was a one-week technological cruise, which took place in spring 2019, in the gulf of Genoa (NW Mediterranean Sea), onboard the R/V T´ethys II. Its aim was to perform several technological tests of some instruments used for the study of the fine-scale processes and dynamics. It was conducted in preparation of the BioSWOT-Med cruise in the SW Mediterranean Sea in 2022, planned as part of the “Adopt a Cross Over” initiative organising simultaneous oceanographic cruises around the world during the SWOT fast sampling phase. During FUMSECK we tested various technological innovations for the study of fine-scale dynamics and their coupling with biogeochemistry. |
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| Ano: 2020 |
URL: https://archimer.ifremer.fr/doc/00636/74854/75246.pdf |
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